Einstufige Servoventilanordnung

Details

Veröffentlichungs-Nr.

EP4545806

Aktenzeichen

EP23461672

Anmeldetag

26. Oktober 2023

Veröffentlichung

30. April 2025

Rechtsraum

EP

IPC

F15B13/044F16K31/06// F15B13/043

Abstract

A single stage servo valve assembly comprising: a drive assembly (1000); and a valve body assembly (2000), the valve body assembly defining a valve body (2001) extending along a valve body axis (X) between a first valve body end and a second valve body end; a supply port (101), a control port (102) and a return port (103) formed through the valve body each defining a respective fluid flow channel, having a fluid flow axis, providing fluid communication between an interior of the valve body and an exterior of the valve body, wherein the drive assembly operates to control the flow of fluid between the supply port, the control port and the return port, via the interior of the valve body, in response to an electric command signal; wherein a first nozzle (201A) is located in the valve body between the supply port and the control port and a second nozzle (201B) is located between the return port and the control port, the first nozzle defining a first fluid flow path from the supply port to the control port and the second nozzle defining a second fluid flow path between the control port and the return port; wherein the drive assembly comprises a flapper means (501, 510) extending in a direction essentially perpendicular to the valve body axis from a first end in connection with the drive assembly to a second end that extends into a space (S) between the first nozzle and the second nozzle, the second end being moveable by means of the drive means, relative to the nozzles; the assembly characterised in that the drive means comprises a first motor (600A) located on a first side of the valve body and a second motor (600B) located on a second side of the valve body opposite the first side as defined with respect to the valve body axis, and wherein the flapper means comprises a first elongate flapper (501) extending along a first flapper axis Y_A from a first end (502) in driving engagement with the first motor to a second end (503) in the space (S), and a second elongate flapper (510) extending from a first end (511) in driving engagement with the second motor along a second flapper axis Y_B to a second end (512) in the space (S), wherein the second end of the first flapper is located adjacent the first nozzle and the second end of the second flapper is located adjacent the second nozzle.

Anmelder

Firma

Hamilton Sundstrand Corporation

Land

🇺🇸 USA

Fachgebiete